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Code Issues Releases Wiki Activity

[nextion] Add configurable limit for commands processed per loop (#8972)

Browse Source 
Co-authored-by: Keith Burzinski <kbx81x@gmail.com>
This commit is contained in:
Edward Firmo
2025-06-10 09:27:46 +02:00
committed by GitHub
parent 3174f7ae86
commit 94848e4811
5 changed files with 69 additions and 31 deletions
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1
esphome/components/nextion/base_component.py
View File

@@ -14,6 +14,7 @@ CONF_COMPONENT_NAME = "component_name"
CONF_EXIT_REPARSE_ON_START = "exit_reparse_on_start"
CONF_FONT_ID = "font_id"
CONF_FOREGROUND_PRESSED_COLOR = "foreground_pressed_color"
CONF_MAX_COMMANDS_PER_LOOP = "max_commands_per_loop"
CONF_MAX_QUEUE_SIZE = "max_queue_size"
CONF_ON_BUFFER_OVERFLOW = "on_buffer_overflow"
CONF_ON_PAGE = "on_page"

56
esphome/components/nextion/display.py
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@@ -16,11 +16,12 @@ from .base_component import (
CONF_AUTO_WAKE_ON_TOUCH,
CONF_COMMAND_SPACING,
CONF_EXIT_REPARSE_ON_START,
CONF_MAX_COMMANDS_PER_LOOP,
CONF_MAX_QUEUE_SIZE,
CONF_ON_BUFFER_OVERFLOW,
CONF_ON_PAGE,
CONF_ON_SETUP,
CONF_ON_SLEEP,
CONF_ON_PAGE,
CONF_ON_WAKE,
CONF_SKIP_CONNECTION_HANDSHAKE,
CONF_START_UP_PAGE,
@@ -50,8 +51,27 @@ CONFIG_SCHEMA = (
display.BASIC_DISPLAY_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(Nextion),
cv.Optional(CONF_TFT_URL): cv.url,
cv.Optional(CONF_AUTO_WAKE_ON_TOUCH, default=True): cv.boolean,
cv.Optional(CONF_BRIGHTNESS): cv.percentage,
cv.Optional(CONF_COMMAND_SPACING): cv.All(
cv.positive_time_period_milliseconds,
cv.Range(max=TimePeriod(milliseconds=255)),
),
cv.Optional(CONF_EXIT_REPARSE_ON_START, default=False): cv.boolean,
cv.Optional(CONF_MAX_COMMANDS_PER_LOOP): cv.uint16_t,
cv.Optional(CONF_MAX_QUEUE_SIZE): cv.positive_int,
cv.Optional(CONF_ON_BUFFER_OVERFLOW): automation.validate_automation(
{
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(
BufferOverflowTrigger
),
}
),
cv.Optional(CONF_ON_PAGE): automation.validate_automation(
{
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(PageTrigger),
}
),
cv.Optional(CONF_ON_SETUP): automation.validate_automation(
{
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(SetupTrigger),
@@ -62,39 +82,21 @@ CONFIG_SCHEMA = (
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(SleepTrigger),
}
),
cv.Optional(CONF_ON_WAKE): automation.validate_automation(
{
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(WakeTrigger),
}
),
cv.Optional(CONF_ON_PAGE): automation.validate_automation(
{
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(PageTrigger),
}
),
cv.Optional(CONF_ON_TOUCH): automation.validate_automation(
{
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(TouchTrigger),
}
),
cv.Optional(CONF_ON_BUFFER_OVERFLOW): automation.validate_automation(
cv.Optional(CONF_ON_WAKE): automation.validate_automation(
{
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(
BufferOverflowTrigger
),
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(WakeTrigger),
}
),
cv.Optional(CONF_SKIP_CONNECTION_HANDSHAKE, default=False): cv.boolean,
cv.Optional(CONF_START_UP_PAGE): cv.uint8_t,
cv.Optional(CONF_TFT_URL): cv.url,
cv.Optional(CONF_TOUCH_SLEEP_TIMEOUT): cv.int_range(min=3, max=65535),
cv.Optional(CONF_WAKE_UP_PAGE): cv.uint8_t,
cv.Optional(CONF_START_UP_PAGE): cv.uint8_t,
cv.Optional(CONF_AUTO_WAKE_ON_TOUCH, default=True): cv.boolean,
cv.Optional(CONF_EXIT_REPARSE_ON_START, default=False): cv.boolean,
cv.Optional(CONF_SKIP_CONNECTION_HANDSHAKE, default=False): cv.boolean,
cv.Optional(CONF_COMMAND_SPACING): cv.All(
cv.positive_time_period_milliseconds,
cv.Range(max=TimePeriod(milliseconds=255)),
),
cv.Optional(CONF_MAX_QUEUE_SIZE): cv.positive_int,
}
)
.extend(cv.polling_component_schema("5s"))
@@ -173,6 +175,10 @@ async def to_code(config):
cg.add(var.set_skip_connection_handshake(config[CONF_SKIP_CONNECTION_HANDSHAKE]))
if max_commands_per_loop := config.get(CONF_MAX_COMMANDS_PER_LOOP):
cg.add_define("USE_NEXTION_MAX_COMMANDS_PER_LOOP")
cg.add(var.set_max_commands_per_loop(max_commands_per_loop))
await display.register_display(var, config)
for conf in config.get(CONF_ON_SETUP, []):

23
esphome/components/nextion/nextion.cpp
View File

@@ -162,21 +162,24 @@ void Nextion::dump_config() {
" Wake On Touch: %s\n"
" Exit reparse: %s",
YESNO(this->auto_wake_on_touch_), YESNO(this->exit_reparse_on_start_));
#ifdef USE_NEXTION_MAX_COMMANDS_PER_LOOP
ESP_LOGCONFIG(TAG, " Max commands per loop: %u", this->max_commands_per_loop_);
#endif // USE_NEXTION_MAX_COMMANDS_PER_LOOP
if (this->touch_sleep_timeout_ != 0) {
ESP_LOGCONFIG(TAG, " Touch Timeout: %" PRIu32, this->touch_sleep_timeout_);
}
if (this->wake_up_page_ != -1) {
ESP_LOGCONFIG(TAG, " Wake Up Page: %" PRId16, this->wake_up_page_);
ESP_LOGCONFIG(TAG, " Wake Up Page: %d", this->wake_up_page_);
}
if (this->start_up_page_ != -1) {
ESP_LOGCONFIG(TAG, " Start Up Page: %" PRId16, this->start_up_page_);
ESP_LOGCONFIG(TAG, " Start Up Page: %d", this->start_up_page_);
}
#ifdef USE_NEXTION_COMMAND_SPACING
ESP_LOGCONFIG(TAG, " Cmd spacing: %" PRIu8 "ms", this->command_pacer_.get_spacing());
ESP_LOGCONFIG(TAG, " Cmd spacing: %u ms", this->command_pacer_.get_spacing());
#endif // USE_NEXTION_COMMAND_SPACING
#ifdef USE_NEXTION_MAX_QUEUE_SIZE
@@ -370,6 +373,10 @@ void Nextion::process_nextion_commands_() {
return;
}
#ifdef USE_NEXTION_MAX_COMMANDS_PER_LOOP
size_t commands_processed = 0;
#endif // USE_NEXTION_MAX_COMMANDS_PER_LOOP
#ifdef USE_NEXTION_COMMAND_SPACING
if (!this->command_pacer_.can_send()) {
return; // Will try again in next loop iteration
@@ -384,6 +391,12 @@ void Nextion::process_nextion_commands_() {
this->print_queue_members_();
#endif
while ((to_process_length = this->command_data_.find(COMMAND_DELIMITER)) != std::string::npos) {
#ifdef USE_NEXTION_MAX_COMMANDS_PER_LOOP
if (++commands_processed > this->max_commands_per_loop_) {
ESP_LOGW(TAG, "Command processing limit exceeded");
break;
}
#endif // USE_NEXTION_MAX_COMMANDS_PER_LOOP
ESP_LOGN(TAG, "queue size: %zu", this->nextion_queue_.size());
while (to_process_length + COMMAND_DELIMITER.length() < this->command_data_.length() &&
static_cast<uint8_t>(this->command_data_[to_process_length + COMMAND_DELIMITER.length()]) == 0xFF) {
@@ -798,8 +811,6 @@ void Nextion::process_nextion_commands_() {
// ESP_LOGN(TAG, "nextion_event_ deleting from 0 to %d", to_process_length + COMMAND_DELIMITER.length() + 1);
this->command_data_.erase(0, to_process_length + COMMAND_DELIMITER.length() + 1);
// App.feed_wdt(); Remove before master merge
this->process_serial_();
}
uint32_t ms = millis();
@@ -840,7 +851,7 @@ void Nextion::process_nextion_commands_() {
ESP_LOGN(TAG, "Loop end");
// App.feed_wdt(); Remove before master merge
this->process_serial_();
} // namespace nextion
} // Nextion::process_nextion_commands_()
void Nextion::set_nextion_sensor_state(int queue_type, const std::string &name, float state) {
this->set_nextion_sensor_state(static_cast<NextionQueueType>(queue_type), name, state);

19
esphome/components/nextion/nextion.h
View File

@@ -75,6 +75,22 @@ class NextionCommandPacer {
class Nextion : public NextionBase, public PollingComponent, public uart::UARTDevice {
public:
#ifdef USE_NEXTION_MAX_COMMANDS_PER_LOOP
/**
* @brief Set the maximum number of commands to process in each loop iteration
* @param value Maximum number of commands (default: 20)
*
* Limiting the number of commands per loop helps prevent stack overflows
* when a large number of commands are queued at once, especially during boot.
*/
inline void set_max_commands_per_loop(uint16_t value) { this->max_commands_per_loop_ = value; }
/**
* @brief Get the current maximum number of commands allowed per loop iteration
* @return Configured command limit per loop
*/
inline uint16_t get_max_commands_per_loop() const { return this->max_commands_per_loop_; }
#endif // USE_NEXTION_MAX_COMMANDS_PER_LOOP
#ifdef USE_NEXTION_MAX_QUEUE_SIZE
/**
* @brief Set the maximum allowed queue size
@@ -1287,6 +1303,9 @@ class Nextion : public NextionBase, public PollingComponent, public uart::UARTDe
bool is_connected() { return this->is_connected_; }
protected:
#ifdef USE_NEXTION_MAX_COMMANDS_PER_LOOP
uint16_t max_commands_per_loop_{1000};
#endif // USE_NEXTION_MAX_COMMANDS_PER_LOOP
#ifdef USE_NEXTION_MAX_QUEUE_SIZE
size_t max_queue_size_{0};
#endif // USE_NEXTION_MAX_QUEUE_SIZE

1
tests/components/nextion/common.yaml
View File

@@ -281,6 +281,7 @@ display:
id: main_lcd
update_interval: 5s
command_spacing: 5ms
max_commands_per_loop: 20
max_queue_size: 50
on_sleep:
then: